11 Variables

A variable is a name used in a program to stand for a value.
In Lisp, each variable is represented by a Lisp symbol
(see Symbols). The variable name is simply the symbol’s name, and
the variable’s value is stored in the symbol’s value cell6. See Symbol Components. In Emacs Lisp, the use of a
symbol as a variable is independent of its use as a function name.

As previously noted in this manual, a Lisp program is represented
primarily by Lisp objects, and only secondarily as text. The textual
form of a Lisp program is given by the read syntax of the Lisp objects
that constitute the program. Hence, the textual form of a variable in
a Lisp program is written using the read syntax for the symbol
representing the variable.

Footnotes

To
be precise, under the default dynamic scoping rule, the value
cell always holds the variable’s current value, but this is not the
case under the lexical scoping rule. See Variable Scoping,
for details.